Barred Plymouth Rock

Discussion in 'Raising Baby Chicks' started by holsingerfamily, May 20, 2008.

  1. holsingerfamily

    holsingerfamily Out Of The Brooder

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    At what age can you sex them? What are the differences between the roo and pullet? What age do the pullets starting laying? Thanks so much!

    Any tips or advice?
    Mine our 13 days old now [​IMG]
     
    Last edited: May 20, 2008
  2. Eggseronious

    Eggseronious Chillin' With My Peeps

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    Barred Rocks carry the sex link gene they got from the Dominique. It is best done at an early age this might not work on your chicks that are 13 days old. The shape of the light colored spot on the top of the chick’s head. At hatching the male head spot, for the most part, is larger and more scattered than the one on the female which tends to be small (though not always) and more compact -- free of black areas. Here is a link on sexing Dominique it will work the same on Barred Rocks. Great link! http://www.dominiquechicken.com/Sexing_Dominique_chicks.html
     
    Last edited: May 20, 2008
  3. WrenAli

    WrenAli Chillin' With My Peeps

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    The spots don't always tell. I have one that is a roo that had a perfect small spot as a day old.

    Roos tend to stand up straighter and have more white than pullets.

    Not sure when they start laying though, I am fairly new to this all.
     
  4. Sahara

    Sahara Chillin' With My Peeps

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    Usually pullets start laying around 6 months old. That is not always the case but a generalization. My wyandotte didn't start laying until she was 8 months old.
     
  5. Davaroo

    Davaroo Poultry Crank

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    Sex linked coloration is what you are after, I suspect. Usually, the male chick in the more common Barred Rock - f sexlink pairings has a white feathered spot on its head at hatching.

    "The barring characteristic in BPR's is transmitted from the dam to the son... It is when BPR females are mated to RIR, NHR or WW males that the plumage and down differs. When BPR males are mated to RIR, NHR or WW females, the sexes cannot be distingusihed at hatching."**

    Unless your birds are sex-links, the markings on a pure Barred Rock chick are going to be iffy to the inexperienced. The link for Dominiques offers hope, but the markings can run the gamut of variation. There seems to be little that is concrete, across the board.

    After 13 days, your best course is to wait - you'll know in a few months which is which.

    ** Morley A. Jull, "Successful Poultry Management," 1943
     
    Last edited by a moderator: May 20, 2008
  6. speckledhen

    speckledhen Intentional Solitude Premium Member

    Take three traits together to get about a 90% accuracy sexing the Barred Rock chicks from hatcheries these days. The darker down color, much darker leg fronts, and more regular, smaller headspots are usually, but not always, the pullets. There are individual variations among chicks that will often lead you to the wrong conclusion or have you sitting on the fence till that great big red comb pops up and he crows. And I've had them lay from 19-24 weeks, just depends, but most lay by about 23 weeks old.

    Historical Document
    Kansas Agricultural Experiment Station

    SEX IDENTIFICATION IN PUREBREDS
    BARRED PLYMOUTH ROCKS

    It had long been recognized that the size of the light head
    spots in Barred Plymouth Rocks varied in the two sexes. The
    males tend to have larger headspots and the females to have
    darker colored legs. However, this method has not been sufficiently
    accurate to be of much commercial value.
    Quinn and Knox (1939) attempted to separate the sexes of
    Barred Plymouth Rocks by means of the intensity of the black
    pigment in the down and legs. In different lots of chicks they
    report 83.5, 86.1 and 91.8 percent accuracy.
    Jerome (1939) describes a method of sex identification in
    Barred Plymouth Rocks based upon the regularity of the outline
    of the head spot rather than the size of the spot. Those chicks
    having headspots irregular in outline and scattered in appearance
    are males while the females tend to have headspots with
    more regular outlines. The author claimed an accuracy of 90
    percent or better when considering only the headspot and 95
    percent if the color of the legs was included in the consideration.
    The Canadian Department of Agriculture (Anonymous 1941)
    issues an excellently illustrated bulletin describing the method.
    It is stated in the bulletin that the method “is widely practiced
    in Barred Rock chicks by commercial chick sexers.” Sex identification
    is based upon outline of head spot, color of legs and
    shade of down color. There are several types of male and female
    head spots​
     
    Last edited: May 20, 2008
  7. holsingerfamily

    holsingerfamily Out Of The Brooder

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    May 17, 2008
    Kentucky :)
    Thank you everyone [​IMG] I just wanted to know the differences so as they get older I can keep a look out. They were hatched in an incubator and the lady said she did not know how to sex them cause she is a newbie too.
     
  8. Davaroo

    Davaroo Poultry Crank

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    So, I guess what we've learned is that accuracy is "iffy," which by default means there is no accuracy. It would take much experience and a lot of "chick gazing" to even approach a good guess, it seems.

    I note the reference from Cyn (thanks for that detailed reference, by the way!) quoted sample dates from the late 1930's. The breed was only 70 years old back then and the Kansas experiments were with purebreeds.

    I wonder where we are in terms of breed purity, and thus the validiity of those experiments, some 70 odd years further down the line?
     
  9. Eggseronious

    Eggseronious Chillin' With My Peeps

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    The sexing in my post and link will run 90% true I've been accountable in selling chicks to make it a 50/50 batch. I forgot U asked about laying pullets if well taken care of expect 16-18 weeks. [​IMG]
     

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